private void GenerateGravityObjects()
{
var gravityObjects = new GravityObjectModel[gravityGameObjects.Length];
int centerIndex = -1;
for (int i = 0; i < gravityObjects.Length; i++)
{
if (gravityGameObjects[i] == FocusGameObject)
{
centerIndex = i;
}
Vector position = new Vector();
Vector velocity = new Vector();
GravityGameObjectProperties properties = gravityGameObjects[i].GetComponent <GravityGameObjectProperties>();
vectorUtilities.MakeFristVectorEqualSecondVector(position, gravityGameObjects[i].transform.position);
vectorUtilities.MakeFristVectorEqualSecondVector(velocity, properties.StartVelocity);
gravityObjects[i] = new GravityObjectModel(properties.Mass, position, velocity);
}
if (!CenterPlanets)
{
centerIndex = -1;
}
gameController = new GameController(gravityObjects, centerIndex); //centerIndex
}
public void UpdateVelocity(GravityObjectModel objectNow, GravityObjectModel[] objects)
{
for (int i = 0; i < objects.Length; i++)
{
if (objects[i] != objectNow)
{
float sqrtDst = vectorService.SqrMagnitude(objects[i].Position - objectNow.Position);
Vector forceDir = vectorService.Normilize(objects[i].Position - objectNow.Position);
Vector force = forceDir * gravitationalConstant * objectNow.Mass * objects[i].Mass / sqrtDst;
Vector acceleration = force / objectNow.Mass;
objectNow.Velocity = objectNow.Velocity + acceleration * physicsTimeStep;
}
}
}
public void UpdatePosition(GravityObjectModel objectNow)
{
objectNow.Position = objectNow.Position + objectNow.Velocity * physicsTimeStep;
}
public void UpdatePosition(GravityObjectModel objectNow, Vector centerPosition)
{
objectNow.Position = objectNow.Position + objectNow.Velocity * physicsTimeStep - centerPosition;
}
